The study asked the participants to call out the iPad's weaknesses, listed below. The original study was done using the first iPad, so I've noted in parenthesis advancements the features of the iPad 2 and iOS 5 have addressed.

TabTimes points out that when the teachers were asked what Apple-installed and third-party apps were the most useful in a classroom setting, they chose Safari, Mail, Keynote, iAnnotate, GoodReader, Evernote, Pages, Dropbox, Blackboard Mobile and YouTube.

Interestingly, AllThingsD has reported on a separate research survey by Piper Jaffray that found virtually all educational technology directors surveyed were deploying or getting ready to deploy iPads in the classroom.